Rdio extends free trial period for music plan

(AP) -- Music startup Rdio has joined several competitors in a crowded field of all-you-can-listening services by taking the time limit off its free trial.

The trial had been limited to seven days, and those wanting to continue had to pay for a subscription.

The new plan will give people using computers several months' worth of free listening to any track they want out of a library of 12 million songs. Mobile device users will also get an indefinite amount of free listening, but will be prompted to pay after a shorter amount of use.